Circ-Heart Fail:射血分数降低的心力衰竭患者皮肤间质改变

2018-07-15 xing.T MedSci原创

由此可见,与健康受试者相比,HFrEF患者的间质糖胺聚糖浓度显著增加,并与组织水含量和容量超负荷的临床体征相关。更好地了解间质腔室可以改善HF中容量超负荷的治疗。

间质糖胺聚糖的网络有助于调节水和电解质的稳态。皮下间质改变与射血分数降低的心力衰竭(HFrEF)患者水肿发生之间的关系尚不清楚。近日,心血管领域权威杂志Circ-Heart Fail上发表了一篇研究文章,研究人员假设在HFrEF患者中(1)间质糖胺聚糖密度增加,(2)间质糖胺聚糖网络的变化与间质液积聚有关,(3)间质糖胺聚糖网络与肾素-血管紧张素-醛固酮系统之间存在联系。

在健康受试者(n=18)和HFrEF患者(n=29)中获得两次皮肤穿刺活检样本。研究人员进行了阿尔新蓝染色和血管紧张素II1型受体的免疫染色。在获得组织水含量后,对总的间质糖胺聚糖(糖醛酸)和硫酸化糖胺聚糖进行定量。同时,获得受试者静脉血样,进行临床检查和超声心动图。

与健康受试者相比,HFrEF患者的间质糖胺聚糖含量显著增高(糖醛酸:13.0±4.2 vs. 9.6±1.6μg/mg; P=0.002;硫酸化糖胺聚糖:14.1 [11.7-18.1] vs. 10.0 [9.1- 10.8] μg/mg; P<0.001)。糖醛酸和硫酸化糖胺聚糖密度与组织水含量和外周水肿密切相关(糖醛酸:ρ=0.66; P<0.0001和硫酸化糖胺聚糖:τ=0.58; P<0.0001)。尽管使用血管紧张素转换酶抑制剂/血管紧张素受体阻滞剂与HFrEF患者显著较低水平的间质糖胺聚糖相关,但在真皮细胞上发现了血管紧张素II1型受体的表达。

由此可见,与健康受试者相比,HFrEF患者的间质糖胺聚糖浓度显著增加,并与组织水含量和容量超负荷的临床体征相关。更好地了解间质腔室可以改善HF中容量超负荷的治疗。

原始出处:


Petra Nijst,et al. Dermal Interstitial Alterations in Patients With Heart Failure and Reduced Ejection Fraction A Potential Contributor to Fluid Accumulation? Circulation:heart failure. 2018. https://doi.org/10.1161/CIRCHEARTFAILURE.117.004763

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    2018-07-17 zhaojie88
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    2018-07-17 slcumt
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    2018-07-16 1ddf0692m34(暂无匿称)

    学习了.长知识

    0

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    2018-07-15 wzb521zf

    一起学习学习

    0

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    2018-07-15 大爰

    学习并分享!!

    0

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    2018-07-15 1209e435m98(暂无昵称)

    学习了.谢谢分享

    0

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